New navigation software for wheelchairs will allow people to travel around a building using only spoken commands. The chair, developed by researchers at MIT, uses the strength of Wi-Fi signals from nodes around the building to triangulate the chair’s location. Prior to use, the chair must be wheeled around the building so that the software can link spoken commands to a specific location.
The US Department of Homeland Security is pressing ahead with plans to develop a system that detects people with “hostile intentions” (Â鶹´«Ã½, 11 August 2007, p 24). Volunteers are being paid to walk through a…
